ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (2): 19-27. doi: 10.7668/hbnxb.20191701

Special Issue: Corn Drought and water saving Biotechnology

• Crop Genetics & Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Expression Analysis of 10 ZmDOFs under Abiotic Stress in Maize

JIA Liqiang1, ZHAO Qiufang2, CHEN Shu2   

  1. 1. Guizhou Education University, Guiyang 550018, China;
    2. Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524091, China
  • Received:2020-12-01 Published:2021-04-28

Abstract: In order to study the role and function of DNA-binding with one finger (DOF) proteins in maize growth and development, the expression profiles of 10 ZmDOFs genes in different tissues or in response to various abiotic stresses have been carefully studied using qRT-PCR. The result of the phylogenetic tree and gene structure analysis showed that 10 ZmDOFs divided into three subclasses. The result of qRT-PCR revealed that 10 ZmDOFs exhibited obvious expression preference or specificity in different organs, 7 ZmDOFs high expression in tassels, 2 ZmDOFs in young embryo after pollination 15 days and 1 ZmDOF in root, indicating the important roles in the processes of maize growth and development. Results by qRT-PCR revealed the altered expression pattern of most of ZmDOFs in response to salt or osmotic stresses, indicating these gene involved in the regulation of salt or osmotic stress response pathway. ZmDOF3 was up-regulated by at least 5-fold under NH4+ depletion treatment, while ZmDOF23 and ZmDOF46 reduced by 90% under NO3- depletion treatment, indicated these genes were involved in nitrogen homeostasis or signaling pathway.

Key words: Maize, DOF transcription factor, Abiotic stress, Phylogenetic tree, Tissue expression

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Cite this article

JIA Liqiang, ZHAO Qiufang, CHEN Shu. Expression Analysis of 10 ZmDOFs under Abiotic Stress in Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(2): 19-27. doi: 10.7668/hbnxb.20191701.

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